Motor boat installation



Jan. 12, 1932, J, w. HARVEY 1,840,948

MOTOR BOAT INSTALLATION Filed Deo. l5, 1930 2 Sheets-Sheet l T1/mas' Wjzrugy INVENTOR.

BYW A,

TTORNEY Jan. 12, 1932. J. w, HARVEY 1,840,948

MOTOR BOAT I NS TALLATION Filed Deo. 15, 1930 2 Sheets-Sheet 71 James IKMN/@ y INVENTOR.

BY Z5 7E 7i ATTORNEY Patented Jan. 12, 1932 vPATENT oFFlcr.

JAMEs wILLAnD HARVEY, or wm'rnaor, MAINE Moron BoA'r INs'TAIJArIoN Application mea December 1s, 1930. serial no. 502,411.

My invention relates to constructions ofthe general character set forth in my Patent #1,786,997, dated December 30, 1930.

One object of the present invention is to 5 construct the parts so that they can be compactlyarrangezl andmore easily installed.

Another object is to mount the vmovable parts'in such a way that the propeller can be more easily raised in case it strikes an 5 obstacle when the boat is traveling forward.

Another object is to eliminate external projections and protect the swinging arms entirely within the casing.

Another object is to simplify the construction. o

I have shown three modifications of my present invention, each having its own advantages witli respect to different types of power units. v

Fig. 1 Aisa longitudinal section and side view of one form of construction in which the power unit is complete in itself and has the cooling water intake and exhaust passages for the motor and may be rotated on a Vertical axis for the purpose of steering.

Fig. 2 isa horizontal section and plan,the section being takenon lthe plane of the line 2-2 of Fig, 1. y Fig. 3 is a .side view and longitudinal section of another modification .in which the motor and the Water inlet and exhaust passages are carried-by the removable bottom plate or closure, and the propeller shaft housing may be rotatable for the lpurposeof steering. l Fig. 4 is a longitudinal sectional View and partial side elevation of another modification in which the entire power unit is supported in D the bottom'plate which may be rotatable on a .vertical axis for the purpose ofsteering.

"" My former patent shows onev method of installing such a construction in a boat preferably at -a point intermediate the beam and 5 stern and forward of the stern. It will be understood, `of course, that this is applicable tovarious designsof boats without regard to the shape of the stern. f

Preferably the casing 7 has a bottom flange 8 and is secured in an opening in the bottom 9 ofthe boat. The casing itself may be formed of` an'integral casting having a portion 10 which isclosed and an opening 11 at the rear end. A closure plate 12 is fitted to this opening 11 and adapted to be moved into and out 55 of place in the opening. For convenience in manufacture the opening 11 and the plate 12 are circular, and in some forms of the device the plate may be rotatable.

` In the form of Fig. 1 an upright post or 0 pillar 13 has a bottom flange 14 secured to the bottom'plate 12.' This post 13 may con# veniently be of channel-like form as shown in the section of Fig. 2 and is connected at its lower end to the casin by an arm 15 hav- 65 ing two parts,leach of w ich is hinged to a lug 16 integral with the bottom of the casing and' hinged at 17 to one of the side flanges ofthe post 13 close to the bottom. This post 13 is also connected to the casing b a link or `7 arm 18 having two parts, each o which is hinged to a lug at 19 integral with the bottom and/or'side wall of the casing. The other. end of each part of this arm 18 is hinged to the ost at 20 near the to of thepost. 75

T e side arms" 18 may be jointed as indicated at 18 to facilitate the raising and inspection of the propeller as will be hereinafter understood.

The power unit may have l motor 21 of 8 any suitable type whose purpose, of course, is to drive the propeller 22. The frame of the motor may have depending feet 23 supported on the top of the post 13 in any suitable man- 85 ner. v

f The usual tubular housin 24 encloses the driving shaft and extends ownward to the bottom plate 12. The part 25 of the propeller housin ma serve as a rudder as is common in out oar motor practice. The tubular part of the housin is preferably supported in bearings forme at the upper and lower portions of the post 13 and held inr place by detachable bearing caps 26 and 27.

The housing in this ormof construction 95 may be providedl with an inlet 28 ,for the cooling water for the motor. The cooling water may be discharged through the water outlet 29 or with the exhaust from the motor through theoutlet 30.

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A drain outlet 31 isalso preferably provided in some part of the bot-tom of the casing, as for instance in the plate l2 so that when the boat is in motion the water in the casing will automatically be drawn out.

The motor or the propeller housing may be rotated by means of a drum 32 and cable connections such as shown `.in my .application #483,780, or ityinay be turned by a handle k33 if desired.

in any suitable manner, as for instance b a cable 36, to yfacilitate lifting thevprope ler out of the water either tem orarly or whenv it is desired to lay up-the oat. v

In the ordinary lifting of the propeller the two arms 15 and 18 swing about their forward ends and the propeller is lifted up through the opening in the bottom of the casing until it clears the bottom of theboat at which time the arm 18will be substantially verticaland the housing 24 willbe inclined at ,a considerable angle to the horizontal. Further pull on the handle 35, causes v*the* friction or spring ti ht joints 18 to yield and allow the upper orward end of the motor to swing still farther forward and downward, thus further raising the propeller to a point where it can be more easily reached and where the weigh't of the parts isv better disposed for stability.

In thev construction shown in Fig. 3- the casing 40 has an opening in the bottom normally closed by the plate 41 which is not intended to be rotatable although it maybe circular as in the form shown in Fig. 2 for convenience in manufacture.

- -This construction also has a vertical post or pillar 42 secured to the bottom closure 41 in any suitable manner. T is post is connected t0 the casing by links or arms 43 and 44 similar to those above described so that the post 42 and the bottom plate 41'may have a swinging movement up into the casing. Y

- A motor 45 of any suitablevtype drives the propeller 46 through a shaft 47 and bevel gear connection as usual in motors.` of ,this type. The motor may be supported in any suitable manner on the upper end of tliepost 42, and the'housing 48 is rotatably supported by the post 42 and held in place by bearing caps .such as 49 at the top and bottom. This housing 48 has a collar50 at its upper end by which it may be rotated with the aid of a handle 51 for the purpose of steering, the m0- pxlate or toi"` itself being stationary with respect to the post 42 and bottom plate 41 which constitute the tilting frame.

In this case the water inlet 52 is in the bottom plate 41 and connected by a suitable pipe to the motor. A pump 53 of any suitable type construction of this character the cooling water and exhaust passages are independent of the propeller shaft housing 48. In such a .coiistruction the pro ller shaft housing might be made remova sembly and repair. y

The water inlet might be located close to the propeller as iii Fig. 1 in which case the propeller serves to aid in the water circula-v tion without any separate ump.

In the vform shown in ig. 4 the plate 60 normally closes an opening 61 which is formed in the bottom of the casing .62. This plate is rotatable and a yielding gasket 63 is preferably provided.

The motor'64 may beof any suitable type and has a depending housingl 65 secured for le for purpose of asinstance by bolts'66 to the upper face of the movable bottom plate 60. The housing 67 is sus ended from the bottom of the plate 60 by ro ssuch as .68. The housings carry the water inlet and exhaust outlet passages 69 and 70 respectively. n

y The housing also supports the VVertical shaft 71 and the horizontal shaft 72 and gears for driving the Vpropeller 73 in the usual manner. This may also embody reversing means 74 and an operating rod 75 controlled in any well known manner. i

This'entir'ehousing construction may be provided with means such as a drum 76 for rotatin it on a vertical axis for the purpose of steering. i

The sleeve or upright member 77 may be detachably connected to support the housing 65 and for this purpose bearing caps 7 8- may be provided detacliably secured to the main body of the sleeve in the usual manner.

' A top plate 79 may be secured to the upper end of the housing 65 and seat in a supporting plate 80 for'additional stability if desired as in my former patent. f It'will be understood, ofcourse, that this ,form of construction also preferably employs swinging arms such as 81- and 82 for the purpose of tilting the power unit as heretofore described with reference to the other forms of the invention. l

In this case the arms 81 and 82 are hinged to the sleeve 77 which corresponds in this respect to the post 13 shown in Fig. 1.

Iii-the type of construction shown in Fig. 4 where the housing above the movable bottom plate is of substantial cross section it will be understood thatv many conveniences and arrangements may be provided, for instance such a construction ermits of the use of an impellerv or a centrifugal pump, reduction gearlng or reversing mechanism whereby the verticalpropeller shaft may be reversed.

It will be seen from the foregoing that the invention herein claimed is capable of adaption to various forms of motors. While certainV features of the invention are particularl applicable to what are commonly termed out oardy motors where the boat' is steered by the rotation of the propeller housing on a vertical axis, it should be understood that manyof the features are equally useful in installations which employ separate rudders for the purpose of steering. Although the power unit may itself carry the fuel reservoir it should be understood that a separate reservoirmay be employed if desired, as set forth in my former application.

Location of the water inlet beneath the bottom of the boat provides a more efficient water cooling system as there is less air en.- trained with the water'than is the case when the propeller and water inlet is atthe stern in the wake of the boat. This inboard casing installation also permits of a shorter shaft .housing and a lower motor so that the cooling water does not have to be lifted as high as in the usual outboard motor.

Mechanism embodying the foregoing features has been found to provide an extremely v convenient method of installation, great stability and convenience of operation, and it also results in more efficient application of power.

Altho this invention is especially adapted to so called outboard motors which are mounted directly on the upper end ofthe housing, some of the advantages might be had from the use of a stationary'type motor mounted alongside of the casing and connected to the propeller shaft by flexible power transmission mechanism permitting the tiltin action of the propeller as herein set forth. n such case it is desirable to provide a water inlet in the stationary bottom of the casing and a .motor exhaust ythrough the bottom. The

drain 31 may also be located in the fixed bottom plate.

.I claim:

' 1. A motor installation com rising a casing having an opening in the ttom, a closure for said opening, a rotatable propeller shaft extending through said closure, a housing for said shaft, a bearing member for said housing, a pair of swinging arms each hin ed at one end within said casing and hinge at the other end to said bearing member.

2. In a motor installation, a casing havin an opening in the bottom, a closure for sai opening, a propeller shaft extending through said closure, a housing for said shaft, a propeller carried by said housing beneath said closure, a air of swinging arms each hinged at one en within said casing and having a hinged connection at its other end to said housing.

3. A motor boat installation comprising a casing `adapted to be secured to the bottom of a boat and having an opening in the bottom, a propeller supporting frame including a vertical housing for the propeller shaft, two arms one above the other hinged at their forward ends within said casing near the front end thereof, the lower arm having a hinged connectiomwith the housing near the bottom of the boat the other upper arm having a hinged connection with the housing above the hinged connection of the other arm, the said upper arm having its forward end hinged to the casing forward of the forward end of the lower arm.

4. A motor installation comprising a casing having a bottom opening, a housing carrying a propeller movable through said opening, two swinging arms having a hinged connection with said housing, one of said arms being jointed intermediate its ends to permit extra inclination of the housing.

5. A motor installation comprising a casing having a bottom o ening, a housing carrying a propeller mova le through said opening, two swinging arms having a hinged connection with said housing and said casing, one arm being above the other and theupper of said arms being jointed intermediate its ends to permitv extra inclination of the housing. l

6. A motor installation as set forth in claim 1 in which one arm is movable above the other and provided with a folding joint.

7. A motor installation as set forth in claimv3 having a folding joint in the upper arm.

8. A motor installation comprising a casin having an opening in the bottom, a movab e plate for closing said opening, a post secured to said plate, a propeller shaft housing secured to said ost, a motor for driving the propeller, a cooling water inlet through said bottom plate and an exhaust outlet through said plate.

9. A motor installation comprising a casin having an opening in the bottom, a movab e plate for closing said opening, a post secured to said plate, a propeller shaft housing secured to said post, a motor for driving the propeller, a cooling water inlet through said bottom plate and an exhaust outlet through said plate, the propeller shaft housing being rotatable independently of the inlet and exhaust connection.

10. In a motor installation, a casing having a bottom opening, a plate closing said opening, a propeller housing rotatable in said plate, a post secured to said plate, hinged supports for the upper and lower ends of sol - said post to permit it to tilt with the propel,-V ler housing, and a motoreXhaust pipe separate fro1nsaid housing, and dischargingl through said plate. i 1

5 .11. A motor installation comprising, a cas-v ing having a bottom opening, a plate closingv said opening, a propellerhousing extending through said plate,fhing'ed supporting members connected to the upper and lower endsfof said housingto permit lit to tilt, a waterinlet and amotor exhaust pipe separate from said housing discharging through said plate. i, -v l Y `l2.. A motor installation comprising a casing'having av bottom opening, a plate rotatable in said opening, a housing secured to. and vrotatable with, ther plate, a tilting sleeve affordinga bearingand support for said housing, said housing having la propellerff'and a water inlet'and `anexhaust outlet.

13. A motor installation comprising a casing having a bottom opening, a plate rotatable in said opening, a housin secured to and rotatable with the plate, a tilting sleeve affording a support for said housing, said housing havinga propeller on its lower endl and two arms hinged to said casing and said sleeve. I

14. In a motorinstallation a casing having a bottom opening, a platefor closing said opening, a propeller housing having a lower portion secured beneath said plate and hav' peller permitting the propeller-to be moved tom.

the casing, means Afor draining' the, casing Whenin motion and a power transmission connection v,between the motor andthe proup and down inthe casing. I 'i 70 17. A motor boat installation comprising a casing'open4 atthe top and having an openingin one yend ofthe bottom, va supporting frame havingta plate for closing said o ning, a motor` unit carried by said frame av- 'Il ing a power cylinder at the upper end over the opening at the top of the casing, and a propeller at its lower end beneath said plate and a tilting support for said frame entirel within'the casing and connected at one en to said frame and hinged at its other end to the inside of the casingnear the bot-v JAMES WILLARD HARVEY.

ing a water inlet, apropeller and reversing means, and an upper housing portion secured above said plate and supporting means for theupper part of the housing.

15'. A motor boat installation comprising aV casing secured to the bottom of the boat forward of the stern and having a bottom platefwith an opening therein, a removable bottom plate for closing said opening, a motor havinga Water inlet and an exhaust through one of said bottom plates, a propel-A ler shaft yhousing secured to and having a portion projecting downwardly from the removable bottom plate, a propeller carried bypsaid housing beneath the bottomv plate, a swinging arm hinged in the casing and having a hinged connection with said housing adjacent the removable bottom plate, a second arm providing a swinging support for an upper part of said housing and power transmission mechanism connecting the mol tor with-the propeller.

1 16. A `motor boat installation comprising a casing secured in an opening in the bottom of the boat and having an opening in one portion of its bottom with avrernovable plate portion for closing the opening, a motor -mounted adjacent the casing and having -a water inlet through a portion of the bottom of the casing and having an exhaust Adischarging beneath the bottom of the casing, a propeller supported by and movable with` said removable plate portion up into lll 

